That looks like a smart system actually. I watched the video for the moskomoto one, impressive.
I wonder how long it would last though, when it is in the sun and rain a few years, get some Calcium Chloride drying on it, would it ever recover? Not very much storage space either really, 80 liters can easily be exceeded with two aluminum panniers, plus a top box to add another 50+.
Pricey too at close to $500 bucks, ouch.
Still a lot lighter than a lot of other items. It would never fit all the crap I take.